clc;clear all
x=[54.360893 8.683351 34.318634 79.996171 0.000187 1.46525 2.12965 10.954397 11.074534 6.283185 0.616731 1.310254 2.19357 2.91717 3.490746 4.132017 4.922075 5.695372 6.28297];
Cdx=[20 20 20 20 20 20];
Cdy=[20 25 30 35 40 45];
index=INDEX(x,Cdx)  
Co2=sequence(x,index)
